KR20180091173A - synthetic leather for automobile - Google Patents

synthetic leather for automobile Download PDF

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KR20180091173A
KR20180091173A KR1020170015995A KR20170015995A KR20180091173A KR 20180091173 A KR20180091173 A KR 20180091173A KR 1020170015995 A KR1020170015995 A KR 1020170015995A KR 20170015995 A KR20170015995 A KR 20170015995A KR 20180091173 A KR20180091173 A KR 20180091173A
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South Korea
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layer
pvc
present
fabric
surface layer
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KR1020170015995A
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Korean (ko)
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KR102002209B1 (en
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박서현
송은호
송권빈
김병민
허유랑
전성모
홍민기
변재현
이영은
성동훈
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(주)엘지하우시스
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
    • D06N3/145—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes two or more layers of polyurethanes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06N3/06—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds with polyvinylchloride or its copolymerisation products
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/18—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with two layers of different macromolecular materials
    • D06N3/183—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with two layers of different macromolecular materials the layers are one next to the other
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2211/00—Specially adapted uses
    • D06N2211/12—Decorative or sun protection articles
    • D06N2211/26—Vehicles, transportation
    • D06N2211/263—Cars

Abstract

The present invention relates to a synthetic leather for an automobile, capable of minimizing an increase in surface temperature under the sun and rapidly decreasing the surface temperature thereof when the sun is blocked, by substituting a general paint included in a surface layer with a reflection paint capable of reflecting near-infrared rays (NIR) and including glass bubble having low heat capacity and NIR reflection properties on a surface treatment layer. To achieve the purpose of the present invention, according to the first embodiment of the present invention, the synthetic leather includes: a fabric layer; a polyurethane (PU) binder layer installed on the upper part of the fabric layer; a PU surface layer installed on the upper part of the binder layer and including an NIR reflection paint; and the surface treatment layer including the glass bubble and installed on the upper part of the surface layer. According to a second embodiment of the present invention, the synthetic leather includes: the fabric layer; a polyvinyl chloride (PVC) foaming layer installed on the upper part of the fabric layer; a PVC surface layer installed on the upper part of the PVC foaming layer and including the NIR reflection paint; and the surface treatment layer installed on the upper part of the PVC surface layer and including the glass bubble.

Description

자동차용 인조가죽{synthetic leather for automobile}Synthetic leather for automobile

본 발명은 자동차용 인조가죽에 관한 것으로, 보다 상세하게는 표면층에 근적외선 반사안료를 포함해줌과 아울러, 표면처리층에 글래스 버블(glass bubble)을 포함해줌으로써, 햇빛이 차단되었을 때 표면 온도가 빠르게 떨어지도록 한 자동차용 인조가죽에 관한 것이다.The present invention relates to an artificial leather for automobiles, and more particularly, to an artificial leather for automobile, which includes a near infrared ray reflective pigment on a surface layer and a glass bubble in a surface treatment layer, The present invention relates to an artificial leather for automobiles,

일반적으로, 자동차 내부는 제2의 주거공간으로 인식되고 있으며, 최근에는 이러한 자동차 내부 공간에서 편안하고 쾌적한 운전을 위해 기능성 시트가 각광받고 있다.In general, the inside of a car is recognized as a second residential space, and recently, a functional seat has been spotlighted for comfortable and comfortable driving in the interior space of such a car.

자동차 내장재용 소재로는 천연가죽이나 PVC, PU 인조가죽이 주로 사용된다. 인조가죽은 천연가죽에 비해 저렴한 장점이 있다. 이러한 인조가죽에 대하여 대한민국 공개특허 제10-2009-0095044호(공개일: 2009년09월09일) 등으로 선 출원된 바 있다.Natural leather, PVC, PU artificial leather are mainly used for automobile interior materials. Artificial leather is less expensive than natural leather. Such artificial leather has been filed in Korean Patent Application No. 10-2009-0095044 (published on September 09, 2009).

구체적으로, 기존의 인조가죽은 안료를 통해 색을 부여하고 있으며, 대부분 검정과 베이지 색상이 주를 이루고 있다.Specifically, conventional artificial leather gives color through pigment, and mostly black and beige colors are dominant.

이 경우 검은색 안료로 카본블랙(carbon black)이 주로 사용되는데, 이 안료는 대부분의 빛을 흡수하여 인조가죽 원단의 표면 온도가 매우 뜨거워지게 된다.In this case, carbon black is mainly used as a black pigment, which absorbs most of the light and the surface temperature of the artificial leather fabric becomes very hot.

즉 햇빛이 강한 낮에는 자동차 내부의 온도가 빠르게 상승하게 되고, 자동차 시트 등의 내장재로 사용되는 인조가죽 역시 표면 온도가 빠르게 상승하게 된다.In the daytime when the sun is strong, the temperature inside the automobile rises rapidly, and the surface temperature of artificial leather, which is used as an interior material for car seats, also rises rapidly.

이에 따라 운전자나 동승자가 차량 내에 승차하였을 때 불쾌감을 느낄 수 있는 문제점이 있다.Accordingly, there is a problem that the driver or the passenger may feel uncomfortable when riding in the vehicle.

본 발명은 상술한 문제점을 해결하고자 안출된 것으로, 표면층에 포함되는 일반 안료 대신 근적외선(NIR, near infrared ray)을 반사시킬 수 있는 반사안료로 대체함과 아울러, 표면처리층에 근적외선 반사와 낮은 열용량(heat capacity)의 특징을 가진 글래스 버블(glass bubble)을 포함해줌으로써, 햇빛 아래에서 표면 온도의 상승을 최소화하고 햇빛이 차단되었을 때 표면 온도가 빠르게 떨어지도록 한 자동차용 인조가죽을 제공하는데 그 목적이 있다.Disclosure of Invention Technical Problem [8] The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a reflective pigment which can replace near infrared rays (NIR) the present invention provides an artificial leather for automobiles that includes glass bubbles having heat capacity characteristics so as to minimize the rise of the surface temperature under the sunlight and to rapidly decrease the surface temperature when the sunlight is shut off, .

상술한 바와 같은 목적을 구현하기 위한 본 발명의 제1실시예에 따른 자동차용 인조가죽은, 직물층; 상기 직물층의 상부에 적층되는 PU(polyurethane) 바인더층; 상기 바인더층의 상부에 적층되며, 근적외선 반사안료를 포함하는 PU 표면층; 및 상기 표면층의 상부에 적층되며, 글래스 버블(glass bubble)을 포함하는 표면처리층;을 포함한다.According to a first aspect of the present invention, there is provided an artificial leather for a vehicle, comprising: a fabric layer; A polyurethane (PU) binder layer laminated on the fabric layer; A PU surface layer laminated on the binder layer and including a near infrared ray reflective pigment; And a surface treatment layer stacked on the surface layer and including a glass bubble.

본 발명의 제2실시예에 따른 자동차용 인조가죽은, 직물층; 상기 직물층의 상부에 적층되는 PVC(polyvinyl chloride) 발포층; 상기 PVC 발포층의 상부에 적층되며, 근적외선 반사안료를 포함하는 PVC 표면층; 및 상기 PVC 표면층의 상부에 적층되며, 글래스 버블(glass bubble)을 포함하는 표면처리층;을 포함한다.An automotive artificial leather according to a second embodiment of the present invention comprises: a fabric layer; A polyvinyl chloride (PVC) foam layer laminated on top of the fabric layer; A PVC surface layer laminated on top of the PVC foam layer and comprising a near-infrared reflective pigment; And a surface treatment layer stacked on top of the PVC surface layer and including glass bubbles.

이상과 같은 구성에 따른 본 발명은, 표면층에 포함되는 일반 안료 대신 근적외선(NIR)을 반사시킬 수 있는 반사안료로 대체함과 아울러, 표면처리층에 근적외선 반사와 낮은 열용량(heat capacity)의 특징을 가진 글래스 버블(glass bubble)을 포함해줌으로써, 햇빛 아래에서 표면 온도의 상승을 최소화할 수 있다.The present invention according to the present invention has been made to replace the general pigment included in the surface layer with a reflective pigment capable of reflecting near infrared rays (NIR), and also has characteristics of a near-infrared ray reflection and a low heat capacity By including a glass bubble, you can minimize surface temperature rise under sunlight.

아울러 햇빛이 차단되었을 때 인조가죽의 표면 온도가 빠르게 떨어지도록 할 수 있는 장점이 있다.In addition, there is an advantage that when the sunlight is cut off, the surface temperature of the artificial leather can be rapidly dropped.

도 1 및 도 2는 본 발명의 제1실시예에 따른 자동차용 인조가죽의 적층구조를 보여주는 도면,
도 3 및 도 4는 본 발명의 제2실시예에 따른 자동차용 인조가죽의 적층구조를 보여주는 도면이다.1 and 2 are views showing a laminated structure of an artificial leather for a vehicle according to a first embodiment of the present invention,
3 and 4 are views showing a laminated structure of an artificial leather for a vehicle according to a second embodiment of the present invention.

이하 첨부한 도면을 참조하여 본 발명의 바람직한 실시예에 대한 구성 및 작용을 상세히 설명하면 다음과 같다.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

여기서, 각 도면의 구성요소들에 대해 참조부호를 부가함에 있어서 동일한 구성요소들에 한해서는 비록 다른 도면상에 표시되더라도 가능한 한 동일한 부호로 표기되었음에 유의하여야 한다.In the drawings, the same reference numerals as in the drawings denote the same elements in the drawings, unless they are indicated on other drawings.

도 1 및 도 2는 본 발명의 제1실시예에 따른 자동차용 인조가죽의 적층구조를 보여주는 도면이다.1 and 2 are views showing a laminated structure of an artificial leather for a vehicle according to a first embodiment of the present invention.

도 1 및 도 2를 참조하면, 본 발명에 따른 자동차용 인조가죽(100)은, 아래에서 위로 직물층(110), PU 바인더층(111), PU 표면층(130), 표면처리층(140)을 포함한다.1 and 2, an automotive artificial leather 100 according to the present invention includes a fabric layer 110, a PU binder layer 111, a PU surface layer 130, a surface treatment layer 140, .

이러한 본 발명의 구성에 대해 구체적으로 설명하면 다음과 같다.The configuration of the present invention will be described in detail as follows.

먼저, 직물층(110)은 직물, 니트, 함침 트리코트, 함침 부직포, 원착사, 부직포 중 어느 하나의 재질로 이루어질 수 있다.First, the fabric layer 110 may be made of any one of a fabric, a knit, an impregnated tricot, an impregnated nonwoven fabric, a raw fabric, and a nonwoven fabric.

PU 바인더층(111)은 직물층(110)의 상부에 적층되는 것으로, 상기 직물층(110)과 PU 표면층(130)의 견고한 접착상태를 유지해주는 역할을 한다. 이러한 PU 바인더층(111)은 수성 폴리우레탄 바인더, 유성 폴리우레탄 바인더, 무용제 폴리우레탄 바인더, 핫멜트 중 어느 하나를 사용할 수 있다. 물론 이에 한정되는 것은 아니며, PU 표면층(130)을 견고하게 접착해줄 수 있다면 다양한 재질로 변경 적용될 수 있다.The PU binder layer 111 is laminated on the fabric layer 110 and serves to maintain a firm adhesion between the fabric layer 110 and the PU surface layer 130. The PU binder layer 111 may be any one of an aqueous polyurethane binder, an oil-based polyurethane binder, a solventless polyurethane binder, and a hot melt. However, the present invention is not limited thereto, and various materials can be applied as long as the PU surface layer 130 can be firmly adhered thereto.

PU 표면층(130) PU 바인더층(111)의 상부에 적층되는 것으로, 이러한 PU 표면층(130)은 폴리우레탄 또는 열가소성 폴리우레탄 재질로 형성될 수 있다.The PU surface layer 130 is laminated on the PU binder layer 111, and the PU surface layer 130 may be formed of a polyurethane or a thermoplastic polyurethane material.

아울러 상기 PU 표면층(130)은 근적외선(NIR)을 반사시킬 수 있는 반사안료를 포함한다. 즉 본 발명에 따른 PU 표면층(130)에 일반 안료 대신 근적외선 반사안료를 포함함으로써 적외선 영역에서의 반사율이 증가하게 되고, 이에 따라 적외선 차폐기능이 증대된다. (참고로, 보통 빛이 흡수되는 파장 영역 중에 근적외선 파장(700 ~ 1100nm)에서 주로 열에너지가 발생하게 된다.)In addition, the PU surface layer 130 includes a reflective pigment capable of reflecting near infrared rays (NIR). That is, when the PU surface layer 130 according to the present invention includes the near-infrared ray reflective pigment instead of the general pigment, the reflectance in the infrared ray region increases, thereby enhancing the infrared ray shielding function. (For reference, heat energy mainly occurs in near-infrared wavelengths (700 to 1100 nm) in the wavelength range where light is normally absorbed.)

바람직하게, 상기 반사안료는 PU 표면층(130) 내에 1 ~ 10 중량%로 포함될 수 있다.Preferably, the reflective pigment may be included in the PU surface layer 130 in an amount of 1 to 10% by weight.

즉 반사안료가 1 중량% 미만으로 포함되는 경우 선명한 표면의 색을 구현할 수 없거나 표면적 대비 안료 부족으로 반사기능의 효과가 약할 수 있다.That is, when the reflective pigment is contained in an amount of less than 1% by weight, the color of the clear surface can not be realized or the effect of the reflection function may be weak due to the lack of the pigment relative to the surface area.

반대로 반사안료가 10 중량% 초과하여 포함되는 경우 PU 표면층(130)의 두께 대비 안료 과량으로 인해 분산성 또는 반사기능의 개선 효과 없으며, 원가가 상승할 수 있는 우려가 있다.On the contrary, when the reflective pigment is contained in an amount exceeding 10% by weight, there is a fear that the dispersibility or the reflection function is not improved due to the excess amount of the pigment relative to the thickness of the PU surface layer 130, and the cost may rise.

구체적으로, PU 표면층(130)에 포함되는 근적외선 반사원료는, 합성운모(mica), 천연운모, 유리 플레이크, 산화철, 산화티탄, 알루미나, 산화마그네슘, 알루미늄, 산화칼슘, 산화아연 운모 및 운모티탄 중 적어도 어느 하나를 포함할 수 있다.Specifically, the near-infrared reflection raw material contained in the PU surface layer 130 can be selected from the group consisting of synthetic mica, natural mica, glass flake, iron oxide, titanium oxide, alumina, magnesium oxide, aluminum, calcium oxide, zinc oxide mica, And may include at least any one of them.

아울러 본 발명에서는 상기 근적외선 반사원료를 피복하는 피복물질로 금속산화물을 사용할 수 있다. 즉 금속산화물은 일사 반사율(solar reflectance)을 높여 차폐 성능을 향상시켜준다.In addition, in the present invention, a metal oxide may be used as a coating material for covering the near-infrared reflection material. That is, the metal oxide improves the shielding performance by increasing the solar reflectance.

구체적으로, 금속산화물은 이산화티탄, 코발트, 산화철, 철-시안착염(Fe4(Fe(CN)6)3), 산화코발트 알루미나(CoAL2O4) 또는 산화크롬 중 적어도 어느 하나일 수 있다. 이는 반사안료의 은폐율을 향상시키며 빛을 반사하여 도막 내에 열을 받아들이는 것을 억제하여 내열성을 증가시킨다.Specifically, the metal oxide may be at least one of titanium dioxide, cobalt, iron oxide, iron-cyanide complex (Fe 4 (Fe (CN) 6 ) 3 , cobalt alumina (CoAL 2 O 4 ), or chromium oxide. This improves the concealment rate of the reflective pigment and reflects the light to suppress the acceptance of heat in the coating film, thereby increasing the heat resistance.

또한 상기 반사안료는 소포제, 분산제를 더 포함할 수 있다.The reflective pigment may further include a defoaming agent and a dispersing agent.

구체적으로, 소포제는 안료 내의 불필요하거나 유해한 기포를 제거해주는 것으로, 당해 기술분야에서 일반적으로 사용되는 종류를 사용할 수 있다. 바람직하게 소포제는, 미네랄 오일계 또는 실리콘계 소포제가 사용될 수 있다.Specifically, the defoaming agent removes unnecessary or harmful air bubbles in the pigment, and a kind commonly used in the art can be used. Preferably, the defoaming agent may be a mineral oil type or a silicone type defoaming agent.

상기 분산제 역시 안료를 제조할 때 사용되는 일반적인 분산제를 사용할 수 있다. 바람직하게 분산제는, 나프탈렌 술폰산염 포르말린 축합물, 멜라민 술폰산염 포르말린 축합물, 폴리카르복산 화합물, 폴리카르복산 에테르, 방향족 아미노 술폰산 폴리머 및 리그닌 술폰산의 금속염으로 이루어진 그룹으로부터 선택된 하나 이상의 물질일 수 있다.The dispersant may be a conventional dispersant used in the preparation of the pigment. Preferably, the dispersing agent may be at least one substance selected from the group consisting of a naphthalenesulfonate-formalin condensate, a melamine sulfonate-formalin condensate, a polycarboxylic acid compound, a polycarboxylic acid ether, an aromatic aminosulfonic acid polymer and a metal salt of ligninsulfonic acid.

또한 안료 특성을 향상시키기 위해 통상의 안료에 사용되는 동결 안정제, 증점제, pH 조절제, 침강방지제 등을 더 포함할 수 있다.Further, it may further include a freezing stabilizer, a thickener, a pH adjuster, an anti-settling agent and the like used in ordinary pigments to improve the pigment characteristics.

표면처리층(140)은 PU 표면층(130)의 상부에 적층되는 것으로, 아크릴(acrylic) 또는 PU(polyurethane) 재질을 포함할 수 있다.The surface treatment layer 140 is laminated on the PU surface layer 130 and may include acrylic or PU (polyurethane) materials.

아울러 표면처리층(140)은 근적외선 반사와 낮은 열용량(heat capacity)의 특징을 가진 글래스 버블(glass bubble)(141)을 포함할 수 있다. 이러한 표면처리층(140)은 글래스 버블(141)을 통해 햇빛 아래에서 표면 온도의 상승을 최소화하고 햇빛이 차단되었을 때 인조가죽(100)의 표면 온도가 빠르게 떨어지게 할 수 있다.In addition, the surface treatment layer 140 may include a glass bubble 141 having characteristics of near-infrared reflection and a low heat capacity. This surface treatment layer 140 can minimize the rise of the surface temperature under the sunlight through the glass bubble 141 and cause the surface temperature of the artificial leather 100 to drop rapidly when the sunlight is cut off.

참고로, 글래스 버블(141)은 속이 빈 중공구조를 갖는 3차원의 미소구형의 필러(Filler)의 한 종류로, 플라스틱에 사용되는 다른 필러 대비 낮은 비중 특성 때문에 PVC 코팅용 가소제나, 에폭시 구조체, SMC(Sheet Molding Compound), BMC(Bulk Molding Compound), RIM(Reaction Injection Molding)에 사용되는 탈크(Talc), 글래스 피버(Glass fiber)와 같은 고중량 필러의 부분 대체를 통한 부품 경량화에 이용될 수 있다.For reference, the glass bubble 141 is one kind of three-dimensional micro-spherical filler having a hollow hollow structure. Because of its low specific gravity characteristic compared to other fillers used in plastic, plastic bubble 141 is used as a plasticizer for PVC coating, It can be used to lighten parts by replacing parts of heavy-weight fillers such as Talc, Glass fiber used in SMC (Sheet Molding Compound), BMC (Bulk Molding Compound) and RIM (Reaction Injection Molding) .

바람직하게, 상기 글래스 버블(141)은 표면처리층(140) 내에 0.5 ~ 5 중량%로 포함될 수 있다.Preferably, the glass bubble 141 may be included in the surface treatment layer 140 in an amount of 0.5 to 5% by weight.

즉 글래스 버블이 0.5 중량% 미만으로 포함되는 경우 코팅 표면적 대비 함량이 부족하여 쿨링 효과가 미비할 수 있다.That is, when the glass bubble is contained in an amount of less than 0.5% by weight, the content of the coating surface area is insufficient and the cooling effect may be insufficient.

반대로 글래스 버블이 5 중량% 초과하여 포함되는 경우 코팅 표면적 대비 높은 함량으로 분산성 문제 또는 표면 백탁 현상이 일어날 수 있는 우려가 있다.On the contrary, when the glass bubble is contained in an amount exceeding 5 wt%, there is a concern that dispersion problems or surface whitening may occur due to a content higher than the coating surface area.

이러한 글래스 버블(141)은 투명하게 형성되는 것이 바람직하다. 물론 이에 한정되는 것은 아니며, 제품의 디자인에 따라 흰색이나 기다 다양한 색상으로 변경 적용될 수 있다.It is preferable that such a glass bubble 141 is formed to be transparent. Of course, the present invention is not limited to this, and may be applied to various colors of white or white depending on the design of the product.

이상과 같은 구성의 본 발명에 따른 자동차용 인조가죽(100)은, 표면층(130)에 포함되는 일반 안료 대신 근적외선(NIR)을 반사시킬 수 있는 반사안료로 대체함과 아울러, 표면처리층(140)에 근적외선 반사와 낮은 열용량(heat capacity)의 특징을 가진 글래스 버블(141)을 포함해줌으로써, 햇빛 아래에서 표면 온도의 상승을 최소화하고 햇빛이 차단되었을 때 표면 온도가 빠르게 떨어지도록 할 수 있다.The automotive artificial leather 100 according to the present invention having the above-described structure replaces the ordinary pigment included in the surface layer 130 with a reflective pigment capable of reflecting near-infrared rays (NIR), and the surface treatment layer 140 ) Can include a glass bubble 141 that is characterized by near-infrared reflection and low heat capacity, thereby minimizing the rise in surface temperature under sunlight and allowing the surface temperature to fall rapidly when sunlight is cut off.

한편, 본 발명의 제2실시예에 따른 인조가죽(100')은 PVC 재질을 적용할 수 있다. 구체적으로, 도 3 및 도 4는 본 발명의 다른 실시예에 따른 자동차용 인조가죽의 적층구조를 보여주는 도면이다.Meanwhile, the artificial leather 100 'according to the second embodiment of the present invention can be made of a PVC material. 3 and 4 are views showing a laminated structure of an artificial leather for automobiles according to another embodiment of the present invention.

도 3 및 도 4를 참조하면, 본 발명의 다른 실시예에 따른 인조가죽(100')은, 직물층(110)과, 직물층의 상부에 적층되는 PVC(polyvinyl chloride) 발포층(120)과, PVC 발포층(120)의 상부에 적층되며 근적외선 반사안료를 포함하는 PVC 표면층(130')과, PVC 표면층(130')의 상부에 적층되며 글래스 버블(glass bubble)(141)이 포함되는 표면처리층(140)을 포함할 수 있다.3 and 4, artificial leather 100 'according to another embodiment of the present invention includes a fabric layer 110, a polyvinyl chloride (PVC) foam layer 120 laminated on top of the fabric layer, A PVC surface layer 130 'that is laminated on top of the PVC foam layer 120 and includes a near-infrared reflective pigment, a surface layer 130' that is stacked on top of the PVC surface layer 130 'and includes a glass bubble 141 And a treatment layer 140.

이 경우 본 발명의 특징이라 할 수 있는 상기 PVC 표면층(130)에 포함되는 근적외선 반사안료와, 표면처리층(140)의 재질 및 이에 포함되는 글래스 버블(141)은 상기 제1실시예와 동일하게 적용될 수 있다.In this case, the near infrared ray reflective pigment contained in the PVC surface layer 130, the material of the surface treatment layer 140, and the glass bubble 141 included therein are the same as in the first embodiment Can be applied.

이상에서는 본 발명을 특정의 바람직한 실시 예를 들어 도시하고 설명하였으나, 본 발명은 상기한 실시 예에 한정되지 않으며 본 발명의 기술사상을 벗어나지 않는 범위 내에서 다양한 변경과 수정이 가능함은 물론이다.While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

100, 100' : 인조가죽 110 : 직물층
111 : 바인더층 120 : PVC 발포층
130 : PU 표면층 130' : PVC 표면층
140 : 표면처리층 141 : 글래스 버블100, 100 ': artificial leather 110: fabric layer
111: Binder layer 120: PVC foam layer
130: PU surface layer 130 ': PVC surface layer
140: Surface treatment layer 141: Glass bubble

Claims (7)

직물층;
상기 직물층의 상부에 적층되는 PU(polyurethane) 바인더층;
상기 바인더층의 상부에 적층되며, 근적외선 반사안료를 포함하는 PU 표면층; 및
상기 표면층의 상부에 적층되며, 글래스 버블(glass bubble)을 포함하는 표면처리층;을 포함하는 자동차용 인조가죽.
A fabric layer;
A polyurethane (PU) binder layer laminated on the fabric layer;
A PU surface layer laminated on the binder layer and including a near infrared ray reflective pigment; And
And a surface treatment layer laminated on the surface layer and including a glass bubble.
직물층;
상기 직물층의 상부에 적층되는 PVC(polyvinyl chloride) 발포층;
상기 PVC 발포층의 상부에 적층되며, 근적외선 반사안료를 포함하는 PVC 표면층; 및
상기 PVC 표면층의 상부에 적층되며, 글래스 버블(glass bubble)을 포함하는 표면처리층;을 포함하는 자동차용 인조가죽.
A fabric layer;
A polyvinyl chloride (PVC) foam layer laminated on top of the fabric layer;
A PVC surface layer laminated on top of the PVC foam layer and comprising a near-infrared reflective pigment; And
And a surface treatment layer laminated on the PVC surface layer and including a glass bubble.
제1항 또는 제2항에 있어서,
상기 반사안료는,
상기 PU 표면층 내에 1 ~ 10 중량%로 포함되는 자동차용 인조가죽.
3. The method according to claim 1 or 2,
The above-
And 1 to 10% by weight in the PU surface layer.
제1항 또는 제2항에 있어서,
상기 근적외선 반사안료는,
합성운모(mica), 천연운모, 유리 플레이크, 산화철, 산화티탄, 알루미나, 산화마그네슘, 알루미늄, 산화칼슘, 산화아연 운모 및 운모티탄 중 적어도 어느 하나를 포함하는 자동차용 인조가죽.
3. The method according to claim 1 or 2,
The near-
An artificial leather for automobile comprising at least one of synthetic mica, natural mica, glass flake, iron oxide, titanium oxide, alumina, magnesium oxide, aluminum, calcium oxide, zinc oxide mica and titanium mica.
제4항에 있어서,
상기 근적외선 반사원료를 피복하는 피복물질로,
이산화티탄, 코발트, 산화철, 철-시안착염(Fe4(Fe(CN)6)3), 산화코발트 알루미나(CoAL2O4) 또는 산화크롬 중 적어도 어느 하나의 금속산화물을 사용한 것을 더 포함하는 자동차용 인조가죽.
5. The method of claim 4,
As a covering material for covering the near-infrared reflecting material,
A metal oxide of at least one of titanium dioxide, cobalt, iron oxide, iron-cyanide complex (Fe 4 (Fe (CN) 6 ) 3 ), cobalt alumina (CoAL 2 O 4 ) Artificial leather.
제1항 또는 제2항에 있어서,
상기 글래스 버블은,
상기 표면처리층 내에 0.5 ~ 5 중량%로 포함되는 자동차용 인조가죽.
3. The method according to claim 1 or 2,
In the glass bubble,
And 0.5 to 5% by weight in the surface treatment layer.
제1항 또는 제2항에 있어서,
상기 표면처리층은,
아크릴(acrylic) 또는 PU(polyurethane) 재질을 포함하는 것인 자동차용 인조가죽.3. The method according to claim 1 or 2,
The surface-
An acrylic or PU (polyurethane) material.
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